Pumping apparatus.



PATENTED FEB. 20, 1906.

v H. W. KIMES. PUMPING APPARATUS.

APPLICATION FILED OCT. 9,1905.

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HUGH W. Knits, or DAYTO OHIO, Assicnoniro VAILE & mines, or I DAYTON, OHIO, A FIRM.

PUMPHNG s l ens-rue.

- Specification of Letters Patent.

Patented Feb. 20, 1906.

Application filed October 9', 1905. Serial No. 282,038.

Tea/U whom/it may concerns I I Be it'known that I, HUGH W- KIMEs, a" citizen o'fthe United States, residing at Day- 'ton, in the county of Montgomery and State of Ohio have invented certain new and useful Improvements in Valve Pumping Apparatus, of which the following is a specification.

This invention relates to a motor-valve appliance ada ted to be used as a connection between a fluid-pressure motor and a pump, the parts being so arranged that thevalve is, thrown by a change of pressure exerted .on the valve at, either end, respectively,by the workine pressure for driving the motor and the loa upon the pump. I

The primary object of this invention is .to

combine a motor and a pump with a valve v controlling the fluid-pressure of the motor and connected to the working chamber of the pump, so arranged that the pressure, say, of

- the water from a street-main will drive the" Imotor and operate the pump to raise water from a cistern to a storage-tank until the pressure in the storage-tank acting on the motor-valve will close the'same and. stop the motor, and that when the pressure 1n the tank becomes less than the water-main pres sure the valve will automatically openand start the motor, thereby maintaining a con Jstant supply or storage in. the tank. This valve is'especially tobe used as a connection I between the motor and pump. of the kind I shown in my application, Serial No. 279,193- filed September 19, 1905. I

The features of my invention are more 'fully set forth in the description'oi the accompanying drawings forming a part of this specification, in which Figure 1 is a side el Inent, showing the top. section of the motor and pump" with the valve connection with the two instrumentalities. Fig. 2 is a longitudinal central vertical section of the valve and its pipeconnections. Fig. 3 is a-sec tion I on line scat, Fig. 2. r ,The drawings illustrate my improved valve connected to an ordinary main at one end and to the pressure-valve of a pump for which it is primarily designed. A represents the top of a water-motor. A represents the'valve-chamber thereon.

:13 represents the automatic valve'-casing. 'v

0 represents a water-main pipe connected cured in position by the nuts 0 c.

evation of my improveby a port a leading into the chamber B .of the. automatic valve. 1) represents a valve for closing the port a.

chamber'A onthe motor.

F represents the air-chamber of a pump. G represe'nts a pipe connecting the same with the rear end of the.valve casing B. The pump connections with the sources of supply and with the storage tanks are not shown.

The valve is constructed as follows: The casing is shown constructed of two parts. H represents that part of the casing connected with the motor and water main, to which the valve-stem l, carrying the disk valve 1), is easily connected for closing the port a. J represents the valve-stem, which is mounted E represents a pipe.- 'connect1ng this chamber with the. valveand supported by differential piston-head's. I

X represents the piston-head of the smaller area, whichreciproca es in a cylinder L, shown as integrally formed with the casing H. it represents the piston-packing of piston K. P represents the piston with larger area. p represents thepacking thereof, which is se- Said piston reciprocates. in' the cylinder M, which forms a part of the automatic-valve casing connected together by screw-threaded engagements; as shown in Fig. 2. N represents the head closing the piston P. To this head is connected the pumppipe Gt. a repsents ports communicating with the pistonchamber at the rear end of cylinder M'for supplying pressure to the larger piston P ton P to assist in clos ng the valve 1) against the pressure of the water motor. The power 'ofthe spring is regulated to the condition's under which the valve is to operate.

The amount of the pressure of the pump on thelarger piston P is determined by the height of the water inthe storageitank. The area of the larger piston must be sufficient to overcome the pressure of the spring and the pressure of the water-main on the smaller piston area K to close the valve I). Now

Q'repr esents'a' coil-spring applied to the piswhen the storage pressure acting on the piston P be'corn'es greater than the pressure or force actin on piston K the pistons and piston-rod wil l move forward ,closing the port a, which will stop the motor, and when the storage pressure acting on the piston P becomes less, than the motor-pressure acting on the 'face of the valve 1) the pistons and piston-rod will move forward, opening the valve dand start the motor and operate the punlp. The-- coil-spring a pliedlto the valve oflarger area i's'of materia assistance in starting the opening movement of the valve and is an important auxiliary, and the valve will-be opened and closed with a less amount of [pressure variationupon opposite piston areasmounted upon thevalve-stem than could be ob tained without the use of a spring. It is also desirable to have the piston-closing movement positive and sensitive to the tank-pressure. v By using the large area ofthe closing piston a quick and. positive closing ofthe valve is obtained. N ow in opening the valve I when the tank-pressure is'reduced the spring assists in thequick movement of the valve I and also overcomes the friction of the pistons moving in their cylinders, enabling asmall piston area to be used for'the opening niove-. 1 ment. 'By the'use' of a single valve for .clos ing the'inlet-port and by employingvdiiferen' tial pistons to effect the valve movements I obtain a material advantage over the employment of two valves.) The/contraction and expansion of metal interferes with theproper seating of two valves; besides with two valveseats the liability of the sticking of thevalves owing to sediments has in practice been found to interfere with the sensitiveness of an auto -matic device. .In a single valve the contraction' and expansion of the metal does not in-- terfere with the seating of the valve. The movement of the larger area piston in its cylinder being indirect line with the valve on the'end of the piston-ro'dinsures the positive seating of the valve. I thus obtain a'sensitive, but reliable operating-valve, working antomatically to stop and start the pump and motor, respectively.

Having described my invention, claim 1. The combination with a motor -fiuid chest and a-pump-charnber of a valve-casing, 1

provided 'witha motor-fluid inlet and outlet, and a: valve mounted. upon a difierential pispiston mounted'on said rod, differential cylin'ders for said pistons, the larger piston area. lhaving pressure connections. with the pump- 'chambenand the smaller piston having fluid connections with the'motorfluid chest and supply-main, and a valve-seatin the casing in linewith saidvalve, substantially as described.-- T

2 The ooinbinatio nj with a motor-fluid chest and a-pump-chamber of a valve-casing,

provided with a motor-fluid inlet and outlet,

and avalve mounted upon a differential piston-rod journaled in said casing, a differential piston mounted on said rod, differential cylindersfor said pistons, the'larger piston 45 ton rodjournal'ed insaid casing, a differential area havingpressure connections with the pump chamber, and the smaller. piston having "fluid' connections with the motor-fluid chest andsupply-main, a valve seat in the casing inline with said valve, and a compresion-spring applied'to the larger piston and tending to open the valve, substantially as .;described. l Q 

